Individual provider Active NPI

Nathaniel Julien, MD

  • Psychiatry Physician
  • Louisville, KY
National Provider Identifier
1992340350
Registry record updated Jul 24, 2023
On this page

Key facts

NPPES NPI Registry
Primary specialty
Psychiatry PhysicianTaxonomy code 2084P0800X
License
R5758 Issued in KY
Practice address
401 E Chestnut St Unit 610
Louisville, KY 40202-5711
Phone
(502) 588-4450
NPI assigned
Nov 8, 2019
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 24, 2023

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Psychiatry Physician 2084P0800X R5758 KY Primary

Addresses

Primary practice location

401 E Chestnut St Unit 610
Louisville, KY 40202-5711

Mailing address

4610 X St
Sacramento, CA 95817-2200
Phone (916) 816-6302

Other practice location 1

4610 X St
Sacramento, CA 95817-2200
Phone (916) 816-6302

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CA
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20250904004322 CA Practitioner - Psychiatry 5193187557 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Psychiatry
Education
University of California, Davis School of Medicine, 2021
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Department of State HospitalsGroup PAC ID 9638174238, 275 clinicians

Practice addresses (Care Compare)

2100 Napa Vallejo Hwy
Napa, CA 94558-6234
Phone (916) 651-8811

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
R5758KYMDPsychiatry Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Department of State Hospitals CurrentSince Jul 31, 2025 Accepting new patients
Department of State Hospitals Current Accepting new patients
Department of State Hospitals CurrentSince Jul 31, 2025 Accepting new patients

Locations

2100 Napa Vallejo Hwy
Napa, CA 94558
Phone (707) 253-5000

1215 O St
#3
Sacramento, CA 95814
Phone (916) 651-2805

Organizations & group practices 3

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1573171200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1690156800000",
    "number": "1992340350",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4610 X ST",
            "city": "SACRAMENTO",
            "state": "CA",
            "postal_code": "958172200",
            "telephone_number": "916-816-6302"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "401 E CHESTNUT ST UNIT 610",
            "city": "LOUISVILLE",
            "state": "KY",
            "postal_code": "402025711",
            "telephone_number": "502-588-4450"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "4610 X St",
            "address_purpose": "LOCATION",
            "city": "Sacramento",
            "state": "CA",
            "postal_code": "958172200",
            "country_code": "US",
            "telephone_number": "916-816-6302",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "JULIEN",
        "first_name": "NATHANIEL",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2019-11-08",
        "last_updated": "2023-07-24",
        "certification_date": "2023-07-24",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084P0800X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": "KY",
            "license": "R5758",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Louisville, KY

Sources for this page

Verify at the official NPI Registry.